Home / 143,625.48-198,206.64-79,967.58

Finding the Fourth Proportional to 143,625.48, 198,206.64 and 79,967.58

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Solution

The fourth proportional to 143,625.48, 198,206.64 and 79,967.58 is: 110,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,625.48 : 198,206.64 = 79,967.58 : x
  2. Step 2: Convert to fraction form
    143,625.48/198,206.64 = 79,967.58/x
  3. Step 3: Cross multiply
    143,625.48x = 198,206.64 × 79,967.58
  4. Step 4: Simplify right side
    143,625.48x = 15,850,105,340.73
  5. Step 5: Solve for x
    x = 15,850,105,340.73/143,625.48
  6. Step 6: Final answer
    x = 110,357.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.